Surbhi Suhane, Author at Sixsigma DSI

Which Country Values Lean Six Sigma Certification the Most?

The United States offers the highest salaries for Lean Six Sigma certified professionals, with Black Belts averaging $169,742 per year (Glassdoor, April 2026). India shows the fastest growth in demand, driven by government-backed manufacturing initiatives and major...

What Is Process Tolerance? Definition, Limits, Capability Indices, and Six Sigma

Process tolerance defines the acceptable range of variation in a process output. It sets the upper and lower boundaries that a process must stay within to meet quality requirements. In Six Sigma, process tolerance directly determines process capability. When variation...

Is Minitab Necessary for Six Sigma? What Practitioners and Official Sources Say

Minitab is not required to earn Lean Six Sigma certification. IASSC explicitly prohibits Minitab during its certification exams. ASQ also does not require it. However, Minitab is the most widely used statistical software for Six Sigma project work. Most training...

What Is Six Thinking Hats? The Six Hats, and How It Connects to Six Sigma

Six Thinking Hats is a structured thinking method created by Dr. Edward de Bono and published in his 1985 book of the same name. It divides thinking into six distinct modes, each represented by a colored hat. Teams use it to examine a problem from six separate angles...

How does AI help in Lean Six Sigma projects?

AI is changing how Lean Six Sigma teams work. It does not replace DMAIC. It speeds up specific steps inside it. PECB describes Six Sigma and AI as complementary, not competing, approaches. Some practitioners call this convergence Quality 4.0. This article explains...